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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Antimicrobial Activity Evaluation of Biocidal Surfaces with Resazurin Assay
 Patakyová, Sylvia ; Viktorová,, Jitka (referee) ; Králová, Marcela (advisor)
This diploma thesis deals with the determination of antimicrobial activity of surfaces with biocidal effect using the resazurin test. The resazurin method of determination is a non-invasive colorimetric method with great potential for widespread use. However, its use so far has been limited as it is not included among standardized methods. The colorimetric method was used as a way to evaluate the effectiveness of immersion experiments using antimicrobial films and the bacterial strain Escherichia coli. The fluorescence intensity of the dye in the suspensions, which were affected by the individual foils, was captured by photographic recording and subsequently evaluated using image analysis. The measured and calculated values of the antimicrobial effect of three samples of active foils with different concentrations of the biocidal substance were compared with the results obtained in conditions with a smaller error rate (using plate-reader) and with the results obtained through a standardized method to demonstrate the relevance of the resazurin method and to assess the antimicrobial activity of studied surfaces.
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